EP 2168942 B1 20120704 - Method for continuous production of Nitrobenzol
Title (en)
Method for continuous production of Nitrobenzol
Title (de)
Verfahren zur kontinuierlichen Herstellung von Nitrobenzol
Title (fr)
Procédé destiné à la fabrication continue de nitrobenzène
Publication
Application
Priority
DE 102008048713 A 20080924
Abstract (en)
[origin: EP2168942A1] Continuous production of nitrobenzene comprises nitration of benzene with mixed acid in a reaction chamber, in which benzene and mixed acid are dispersed several times, where: the mixed acid comprises at least 3 wt.% of nitric acid and less than 67 wt.% of sulfuric acid; the starting temperature of the reaction is above 100[deg] C and below 102[deg] C; the emulsion from benzene with mixed acid is redispersed for at least 4 times, after the first dispersion; and at least 60% of the nitric acid is reacted within first 13 vol.% of the reaction chamber, after the first dispersion.
IPC 8 full level
C07C 201/08 (2006.01); C07C 205/06 (2006.01)
CPC (source: EP US)
C07C 201/08 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
EP 2168942 A1 20100331; EP 2168942 B1 20120704; CN 101712620 A 20100526; CN 101712620 B 20131204; DE 102008048713 A1 20100325; JP 2010077126 A 20100408; JP 5409228 B2 20140205; KR 101631713 B1 20160617; KR 20100034711 A 20100401; PT 2168942 E 20120830; US 2010076230 A1 20100325; US 7763759 B2 20100727
DOCDB simple family (application)
EP 09011636 A 20090911; CN 200910178747 A 20090923; DE 102008048713 A 20080924; JP 2009215596 A 20090917; KR 20090089880 A 20090923; PT 09011636 T 20090911; US 56330009 A 20090921